{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884320631",
    "entityType": "User",
    "nonce": "0x92bb8551aca9530ed47dec1fe4549c6abc0a86dd2cb1f7e70eadfa54de6529bd",
    "signature": "0xf5cb5baa1c9ec37eb6232185384989762ed6ab0d1a4250d9c6008652808a86790c4bfbb906bb2bd53445f00f9470cc332b3d3d0d177642b907627da8f5a6fac51b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}